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Cambridge AS & A Level Chemistry

34.4Amino acids

Amino acids in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Learning objectives

What the syllabus expects you to be able to do.

  1. 34.4.1Describe the acid-base properties of amino acids, zwitterions and the isoelectric point.
  2. 34.4.2Describe the formation of peptide bonds in di- and tripeptides.
  3. 34.4.3Interpret and predict electrophoresis results for amino acids and dipeptides at different pH.

Lessons

  • Amino acids, peptides and proteins

    55 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Amino acids: sample question

1 mark

Which form of alanine is present mainly in a solution of pH 1?

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